This clever loop leverages the recursive power of Crypt Champion and Mirror Image to generate an infinite cycle of life and death. Because Mirror Image enters the battlefield as a copy of Crypt Champion, its own "enters the battlefield" trigger sees a valid target with a mana value of 3 or less waiting in the graveyard, ready to pull itself right back into the action. At the same time, the copied Crypt Champion's sacrifice trigger fires off immediately, instantly binning the clone so it can be reanimated all over again. By repeatedly copying the Champion without ever needing to spend the red mana required to keep it alive, you effortlessly churn through endless entry, leave-the-battlefield, death, and sacrifice triggers.